EP1455455A3 - A programmable logic device which stores more than one configuration and means for switching configurations - Google Patents

A programmable logic device which stores more than one configuration and means for switching configurations Download PDF

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Publication number
EP1455455A3
EP1455455A3 EP04009807A EP04009807A EP1455455A3 EP 1455455 A3 EP1455455 A3 EP 1455455A3 EP 04009807 A EP04009807 A EP 04009807A EP 04009807 A EP04009807 A EP 04009807A EP 1455455 A3 EP1455455 A3 EP 1455455A3
Authority
EP
European Patent Office
Prior art keywords
configuration data
configuration
configurable
logic block
configurable logic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04009807A
Other languages
German (de)
French (fr)
Other versions
EP1455455B1 (en
EP1455455A2 (en
Inventor
Randy T. Ong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xilinx Inc
Original Assignee
Xilinx Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xilinx Inc filed Critical Xilinx Inc
Publication of EP1455455A2 publication Critical patent/EP1455455A2/en
Publication of EP1455455A3 publication Critical patent/EP1455455A3/en
Application granted granted Critical
Publication of EP1455455B1 publication Critical patent/EP1455455B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/1733—Controllable logic circuits
    • H03K19/1737—Controllable logic circuits using multiplexers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17748—Structural details of configuration resources
    • H03K19/17758—Structural details of configuration resources for speeding up configuration or reconfiguration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17704—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form the logic functions being realised by the interconnection of rows and columns
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17748—Structural details of configuration resources
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17748—Structural details of configuration resources
    • H03K19/17756—Structural details of configuration resources for partial configuration or partial reconfiguration
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/173—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components
    • H03K19/177—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using elementary logic circuits as components arranged in matrix form
    • H03K19/17748—Structural details of configuration resources
    • H03K19/1776—Structural details of configuration resources for memories

Abstract

A programmable logic device includes a configuration memory expanded to store two or more complete sets of configuration data. A switch on the output of the configuration memory controls the selection of the configuration data applied to the configurable logic block. Each configurable logic block has one data storage device per set of configuration data. The configurable logic blocks may be re-configured within a user's clock cycle.
During a first period, the switch on the output of the configuration memory selects and passes configuration data from the first set of configuration data. The configurable routing matrix and configurable logic block are configured according to this first set of configuration data and store results in a first storage device. During a second period, the switch selects and passes the second set of configuration data. Then the configurable routing matrix and configurable logic block are configured according to the second set of configuration data, the function generator performs the second logic function, and the outputs are passed or stored by the second output device. At the end of the last period the function is available to the user.
EP04009807.1A 1994-04-20 1995-04-22 A programmable logic device which stores more than one configuration and means for switching configurations Expired - Lifetime EP1455455B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US231009 1994-04-20
US08/231,009 US5426378A (en) 1994-04-20 1994-04-20 Programmable logic device which stores more than one configuration and means for switching configurations
EP95106039A EP0678985B1 (en) 1994-04-20 1995-04-22 A programmable logic device which stores more than one configuration and means for switching configurations

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP95106039A Division EP0678985B1 (en) 1994-04-20 1995-04-22 A programmable logic device which stores more than one configuration and means for switching configurations
EP95106039.1 Division 1995-04-22

Publications (3)

Publication Number Publication Date
EP1455455A2 EP1455455A2 (en) 2004-09-08
EP1455455A3 true EP1455455A3 (en) 2008-04-09
EP1455455B1 EP1455455B1 (en) 2013-09-11

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP04009807.1A Expired - Lifetime EP1455455B1 (en) 1994-04-20 1995-04-22 A programmable logic device which stores more than one configuration and means for switching configurations
EP95106039A Expired - Lifetime EP0678985B1 (en) 1994-04-20 1995-04-22 A programmable logic device which stores more than one configuration and means for switching configurations

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP95106039A Expired - Lifetime EP0678985B1 (en) 1994-04-20 1995-04-22 A programmable logic device which stores more than one configuration and means for switching configurations

Country Status (4)

Country Link
US (1) US5426378A (en)
EP (2) EP1455455B1 (en)
JP (1) JP3626239B2 (en)
DE (1) DE69534812T2 (en)

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EP1455455B1 (en) 2013-09-11
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DE69534812D1 (en) 2006-04-27
EP0678985A3 (en) 1997-07-23
JPH0851356A (en) 1996-02-20
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US5426378A (en) 1995-06-20
EP1455455A2 (en) 2004-09-08
DE69534812T2 (en) 2006-09-14

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